CN102616230B - Upper cover of air-brake brake valve - Google Patents
Upper cover of air-brake brake valve Download PDFInfo
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- CN102616230B CN102616230B CN201210099076.5A CN201210099076A CN102616230B CN 102616230 B CN102616230 B CN 102616230B CN 201210099076 A CN201210099076 A CN 201210099076A CN 102616230 B CN102616230 B CN 102616230B
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- upper cover
- control
- brake
- gas port
- piston
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Abstract
The invention discloses an upper cover of an air-brake brake valve, which comprises an upper cover shell and an upper cover brake piston. The upper cover brake piston is in sliding sealed fit with the inner wall of a piston cavity of the upper cover shell. A brake chamber is formed by the top face of the upper cover brake piston and that of the piston cavity. Control air holes are reserved on the upper cover shell. A guide column is disposed on the upper portion of the upper cover brake piston. A guide channel which is matched with the guide column is disposed on a top cover of the upper cover shell. Big-end-up vertical three-stepped holes are reserved in the center of the upper cover brake piston. The control holes are communicated with the biggest stepped hole. The lower end of the biggest stepped hole is lower than the top face of the upper cover brake piston. A small piston is disposed in the biggest stepped hole and a spring supporting the small piston is disposed in the middle stepped hole. The top face of the upper cover brake piston is a conical face with higher outer side and lower inner side. A drainage hole leads to the biggest stepped hole is reserved on the guide column. The brake chamber has no waterlogging, so that freezing jam in winter can be avoided.
Description
Technical field
The present invention relates to brake valve of car, be especially applicable to the gas braking valve upper cover body of (main car) relay valve, (main car) trailer valve and (trailer) synchronous valve.
Background technology
At present, in the brake repair room (8) of the gas braking valve upper cover body of (main car) relay valve, (main car) trailer valve and (trailer) synchronous valve, easily ponding, particularly winter easily icing blocking, causes brake failure, this accident caused is of common occurrence, brings potential safety hazard to the lives and properties of people.Therefore, designing and a kind ofly Auto-drainage, brake repair room can avoid the gas braking valve upper cover body of brake failure without ponding, preventing freeze in winter, is the current technical issues that need to address.
Summary of the invention
Technical matters to be solved by this invention is to provide Auto-drainage, brake repair room can avoid the gas braking valve upper cover body of brake failure without ponding, preventing freeze in winter.
The technical scheme that the present invention solves its technical matters is:
Gas braking valve upper cover body, comprise upper cover housing and upper cover brake piston, the inwall slipper seal of the plunger shaft of upper cover brake piston and upper cover housing, the end face of the end face of upper cover brake piston and the plunger shaft of upper cover housing forms brake repair room, control pore is provided with at upper cover housing, the top of upper cover brake piston is provided with guidepost, the top cover of upper cover housing is provided with the guide groove with guidepost adaptation, up big and down small vertical three rank stepped holes are provided with at the center of upper cover brake piston, control pore to be communicated with the largest hole of three rank stepped holes, the largest hole of three rank stepped holes bottom lower than the end face of upper cover brake piston, valve piston is provided with in the largest hole of three rank stepped holes, the spring supporting valve piston is provided with in the interstitial hole of three rank stepped holes, the end face of upper cover brake piston is the high outside and low outside conical surface, guidepost is provided with the drain gutter of the largest hole of leading to three rank stepped holes, under non-brake state, the end face of guidepost and the end face of guide groove seal, the ponding of brake repair room is discharged by the interstitial hole of drain gutter and three rank stepped holes and minimum aperture, under braking mode, control gas promotion valve piston to move down, close the interstitial hole of three rank stepped holes, control gas and enter brake repair room by drain gutter, promote upper cover brake piston to move down, when brake off, valve piston moves up under the effect of spring restoring force, braking gas in brake repair room and ponding are together discharged by the interstitial hole of drain gutter and three rank stepped holes and minimum aperture.
Preferably, upper cover housing is provided with control chamber, described control pore is communicated with control chamber, upper cover housing is provided with two, left and right and controls gas port, two, left and right controls gas port and is also communicated with control chamber, the control plunger of surface with interconnection is provided with in control chamber, when the intake pressure of left control gas port is greater than the intake pressure of right control gas port, control plunger moves right, close right control gas port, the control gas entered from left control gas port enters control pore, when the intake pressure of right control gas port is greater than the intake pressure of left control gas port, control plunger is moved to the left, close left control gas port, the control gas entered from right control gas port enters control pore, when the intake pressure that two, left and right controls gas port is identical, from left and right, two control the control gas that enters of gas port and enter control pore by the interconnection on control plunger surface simultaneously.
When preferred version of the present invention is used in (main car) relay valve and (main car) trailer valve, two, left and right controls gas port and is communicated with the two-chamber brake port of master cylinder respectively.
When preferred version of the present invention is used in (trailer) synchronous valve, two, left and right controls gas port and is communicated with (main car) relay valve with (main car) trailer valve respectively.
Compared with prior art, use (main car) relay valve, (main car) trailer valve and (trailer) synchronous valve brake repair room not ponding that the present invention makes, winter is without icing latch up phenomenon.(trailer) synchronous valve made of preferred version of the present invention, when one of them in (main car) trailer valve and (main car) relay valve breaks down, do not affect trailer synchronous valve and normally work, vehicle can travel as usual.Meanwhile, it is fast that (main car) relay valve, (main car) trailer valve and (trailer) synchronous valve of using the present invention to make remove brake speed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 the present invention makes the structural representation of (main car) relay valve;
Fig. 3 the present invention makes the structural representation of (main car) trailer valve;
Fig. 4 the present invention makes the structural representation of (trailer) synchronous valve.
Detailed description of the invention
As shown in Figure 1, gas braking valve upper cover body, comprise upper cover housing 2 and upper cover brake piston 1, the inwall slipper seal of the plunger shaft of upper cover brake piston 1 and upper cover housing 2, the end face of the end face of upper cover brake piston 1 and the plunger shaft of upper cover housing 2 forms brake repair room 8, be provided with at upper cover housing 2 and control pore 4, the top of upper cover brake piston 1 is provided with guidepost 3, the top cover of upper cover housing 2 is provided with the guide groove with guidepost 3 adaptation, up big and down small vertical three rank stepped holes are provided with at the center of upper cover brake piston 1, control pore 4 to be communicated with the largest hole of three rank stepped holes, the largest hole of three rank stepped holes bottom lower than the end face of upper cover brake piston 1, valve piston 5 is provided with in the largest hole of three rank stepped holes, the spring 6 supporting valve piston 5 is provided with in the interstitial hole of three rank stepped holes, the end face of upper cover brake piston 1 is the high outside and low outside conical surface, guidepost 3 is provided with the drain gutter 7 of the largest hole of leading to three rank stepped holes, under non-brake state, the end face of guidepost 3 and the end face of guide groove seal, the ponding of brake repair room 8 is discharged by the interstitial hole of drain gutter 7 and three rank stepped holes and minimum aperture, under braking mode, control gas promotion valve piston 5 to move down, close the interstitial hole of three rank stepped holes, control gas and enter brake repair room 8 by drain gutter 7, promote upper cover brake piston 1 to move down, when brake off, valve piston 5 moves up under the effect of spring restoring force, braking gas in brake repair room 8 and ponding are together discharged by the interstitial hole of drain gutter 7 and three rank stepped holes and minimum aperture.
Upper cover housing 2 is provided with control chamber 11, and described control pore 4 is communicated with control chamber 11, upper cover housing 2 is provided with two, left and right and controls gas port 9; 10, two, left and right controls gas port 9; 10 are also communicated with control chamber 11, the control plunger 12 of surface with interconnection is provided with in control chamber 11, when the intake pressure of left control gas port 9 is greater than the intake pressure of right control gas port 10, control plunger 12 moves right, close right control gas port 10, the control gas entered from left control gas port 9 enters control pore 4, when the intake pressure of right control gas port 10 is greater than the intake pressure of left control gas port 9, control plunger 12 is moved to the left, close left control gas port 9, the control gas entered from right control gas port 10 enters control pore 4, when two, left and right controls gas port 9; When the intake pressure of 10 is identical, from left and right, two control gas port 9; The 10 control gas entered are entered by the interconnection on control plunger 12 surface simultaneously and control pore 4.
Claims (2)
1. gas braking valve upper cover body, comprise upper cover housing (2) and upper cover brake piston (1), the inwall slipper seal of the plunger shaft of upper cover brake piston (1) and upper cover housing (2), the end face of the end face of upper cover brake piston (1) and the plunger shaft of upper cover housing (2) forms brake repair room (8), be provided with at upper cover housing (2) and control pore (4), it is characterized in that: the top of upper cover brake piston (1) is provided with guidepost (3), the top cover of upper cover housing (2) is provided with the guide groove adaptive with guidepost (3), up big and down small vertical three rank stepped holes are provided with at the center of upper cover brake piston (1), control pore (4) to be communicated with the largest hole of three rank stepped holes, the largest hole of three rank stepped holes bottom lower than the end face of upper cover brake piston (1), valve piston (5) is provided with in the largest hole of three rank stepped holes, the spring (6) supporting valve piston (5) is provided with in the interstitial hole of three rank stepped holes, the end face of upper cover brake piston (1) is the high outside and low outside conical surface, guidepost (3) is provided with the drain gutter (7) of the largest hole of leading to three rank stepped holes, under non-brake state, the end face of guidepost (3) and the end face of guide groove seal, the ponding of brake repair room (8) is discharged by the interstitial hole of drain gutter (7) and three rank stepped holes and minimum aperture, under braking mode, control gas promotion valve piston (5) to move down, close the interstitial hole of three rank stepped holes, control gas and enter brake repair room (8) by drain gutter (7), promote upper cover brake piston (1) to move down, when brake off, valve piston (5) moves up under the effect of spring restoring force, braking gas in brake repair room (8) and ponding are together discharged by the interstitial hole of drain gutter (7) and three rank stepped holes and minimum aperture, upper cover housing (2) is provided with control chamber (11), and described control pore (4) is communicated with control chamber (11), upper cover housing (2) is provided with two, left and right and controls gas port (9, 10), two, left and right controls gas port (9, 10) be also communicated with control chamber (11), the control plunger (12) of surface with interconnection is provided with in control chamber (11), when the intake pressure of left control gas port (9) is greater than the intake pressure of right control gas port (10), control plunger (12) moves right, close right control gas port (10), the control gas entered from left control gas port (9) enters control pore (4), when the intake pressure of right control gas port (10) is greater than the intake pressure of left control gas port (9), control plunger (12) is moved to the left, close left control gas port (9), the control gas entered from right control gas port (10) enters control pore (4), when two, left and right controls gas port (9, 10), when intake pressure is identical, from left and right, two control gas port (9, 10) the control gas entered is entered by the interconnection on control plunger (12) surface simultaneously and controls pore (4), gas braking valve upper cover body is used for main car relay valve and main car trailer valve, and two, the left and right of gas braking valve upper cover body controls gas port and is communicated with the two-chamber brake port of master cylinder respectively.
2. gas braking valve upper cover body, comprise upper cover housing (2) and upper cover brake piston (1), the inwall slipper seal of the plunger shaft of upper cover brake piston (1) and upper cover housing (2), the end face of the end face of upper cover brake piston (1) and the plunger shaft of upper cover housing (2) forms brake repair room (8), be provided with at upper cover housing (2) and control pore (4), it is characterized in that: the top of upper cover brake piston (1) is provided with guidepost (3), the top cover of upper cover housing (2) is provided with the guide groove adaptive with guidepost (3), up big and down small vertical three rank stepped holes are provided with at the center of upper cover brake piston (1), control pore (4) to be communicated with the largest hole of three rank stepped holes, the largest hole of three rank stepped holes bottom lower than the end face of upper cover brake piston (1), valve piston (5) is provided with in the largest hole of three rank stepped holes, the spring (6) supporting valve piston (5) is provided with in the interstitial hole of three rank stepped holes, the end face of upper cover brake piston (1) is the high outside and low outside conical surface, guidepost (3) is provided with the drain gutter (7) of the largest hole of leading to three rank stepped holes, under non-brake state, the end face of guidepost (3) and the end face of guide groove seal, the ponding of brake repair room (8) is discharged by the interstitial hole of drain gutter (7) and three rank stepped holes and minimum aperture, under braking mode, control gas promotion valve piston (5) to move down, close the interstitial hole of three rank stepped holes, control gas and enter brake repair room (8) by drain gutter (7), promote upper cover brake piston (1) to move down, when brake off, valve piston (5) moves up under the effect of spring restoring force, braking gas in brake repair room (8) and ponding are together discharged by the interstitial hole of drain gutter (7) and three rank stepped holes and minimum aperture, upper cover housing (2) is provided with control chamber (11), and described control pore (4) is communicated with control chamber (11), upper cover housing (2) is provided with two, left and right and controls gas port (9, 10), two, left and right controls gas port (9, 10) be also communicated with control chamber (11), the control plunger (12) of surface with interconnection is provided with in control chamber (11), when the intake pressure of left control gas port (9) is greater than the intake pressure of right control gas port (10), control plunger (12) moves right, close right control gas port (10), the control gas entered from left control gas port (9) enters control pore (4), when the intake pressure of right control gas port (10) is greater than the intake pressure of left control gas port (9), control plunger (12) is moved to the left, close left control gas port (9), the control gas entered from right control gas port (10) enters control pore (4), when two, left and right controls gas port (9, 10), when intake pressure is identical, from left and right, two control gas port (9, 10) the control gas entered is entered by the interconnection on control plunger (12) surface simultaneously and controls pore (4), gas braking valve upper cover body is used for trailer synchronous valve, and two, the left and right of gas braking valve upper cover body controls gas port and is communicated with main car relay valve with main car trailer valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099076.5A CN102616230B (en) | 2012-04-06 | 2012-04-06 | Upper cover of air-brake brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099076.5A CN102616230B (en) | 2012-04-06 | 2012-04-06 | Upper cover of air-brake brake valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102616230A CN102616230A (en) | 2012-08-01 |
| CN102616230B true CN102616230B (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210099076.5A Active CN102616230B (en) | 2012-04-06 | 2012-04-06 | Upper cover of air-brake brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102616230B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221799B (en) * | 2015-10-15 | 2017-06-27 | 重庆市綦江源泉机电有限公司 | A kind of seven port valves |
| CN113650597B (en) * | 2021-09-25 | 2022-04-29 | 威海广泰空港设备股份有限公司 | Relay valve and anti-freezing control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1580111A1 (en) * | 1966-11-11 | 1970-09-24 | Knorr Bremse Gmbh | Drainage device for the air brake system of motor vehicles |
| GB1580222A (en) * | 1976-07-17 | 1980-11-26 | Bosch Gmbh Robert | Pressure control valve for an anti-skid braking system for compressed-air-operated brakes of a motor vehicle |
| CN102358279A (en) * | 2011-09-01 | 2012-02-22 | 李旭 | Seeper-proof trailer brake valve |
| CN202491800U (en) * | 2012-04-06 | 2012-10-17 | 王福祥 | Upper cover body of air brake valve |
-
2012
- 2012-04-06 CN CN201210099076.5A patent/CN102616230B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1580111A1 (en) * | 1966-11-11 | 1970-09-24 | Knorr Bremse Gmbh | Drainage device for the air brake system of motor vehicles |
| GB1580222A (en) * | 1976-07-17 | 1980-11-26 | Bosch Gmbh Robert | Pressure control valve for an anti-skid braking system for compressed-air-operated brakes of a motor vehicle |
| CN102358279A (en) * | 2011-09-01 | 2012-02-22 | 李旭 | Seeper-proof trailer brake valve |
| CN202491800U (en) * | 2012-04-06 | 2012-10-17 | 王福祥 | Upper cover body of air brake valve |
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| Publication number | Publication date |
|---|---|
| CN102616230A (en) | 2012-08-01 |
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